How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/22100.0*Chance in playoffs100.0*Average seed
Adam 85.5 William 147 -0.2
-0.7
Kevin 54.5 Greg 88.5 -0.0
Tyler 93 Peter 67 +0.1
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Peter 122 Adam 119 -0.5
-1.1
Eric 83 Rob 84.5 In
-0.1
Jason 101 Kevin 122.5 +0.2
+0.1
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Adam 107 Tyler 123.5 -1.1
Chris 108 Rob 100.5 +0.4
William 127 Jason 137.5 +0.2
Greg 129 Peter 105 +0.1
Games Above .500
Chance Will Make Playoffs